Finding the Fourth Proportional to 65,384.35, 90,207.20 and 42,736.42

Step by Step Solution

1. Step 1: Write the proportion equation
   65,384.35 : 90,207.20 = 42,736.42 : x
2. Step 2: Convert to fraction form
   65,384.35/90,207.20 = 42,736.42/x
3. Step 3: Cross multiply
   65,384.35x = 90,207.20 × 42,736.42
4. Step 4: Simplify right side
   65,384.35x = 3,855,132,757.11
5. Step 5: Solve for x
   x = 3,855,132,757.11/65,384.35
6. Step 6: Final answer
   x = 58,961.09